2007 search results - page 186 / 402 » SPECTRUM |
137
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CISS
2008
IEEE
15 years 10 months ago
2008
IEEE
Abstract— According to the cognitive radio paradigm, a terminal or subsystem will opportunistically select a frequency band for data transmission. Because the spectrum is shared,...
130
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DSD
2008
IEEE
15 years 10 months ago
2008
IEEE
— The mobile communication systems today, have different radio spectrum, radio access technologies, and protocol stacks depending on the network being utilized. This gives rise t...
170
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FGCN
2008
IEEE
15 years 10 months ago
2008
IEEE
In last decade intelligent transportation systems (ITS) and vehicular ad hoc network (VANET) became one of the most active and emerging fields of research. It is expected that thi...
125
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GLOBECOM
2008
IEEE
15 years 10 months ago
2008
IEEE
— An opportunistic radio is a radio able to detect the spectrum unused bands, and to adapt its transmission parameters in order to transmit within these free bands. An opportunis...
127
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GLOBECOM
2008
IEEE
15 years 10 months ago
2008
IEEE
—Research in cognitive radios has renewed interest in tools, such as spectrum estimation and modulation identification, to characterize the radio frequency (RF) environment. The...